SCUBAPRO's best-selling air-balanced second stage and its top-performing air-balanced piston first stage is a match made in diver heaven. Well-known for its low work of breathing, year after year this combo has consistently ranked as one of the top-performing regulator systems on the market. The MK25 EVO first stage lets you enjoy an ultra-fast breathing response, instant delivery of air on demand, great sensitivity and impressive airflow. The S600 delivers smooth and easy inhalation and exhalation while offering efficient user controls, including a powerful purge, an inhalation effort control knob and Venturi Initiated Vacuum Assist (VIVA). Together they provide a steady flow of air, regardless of depth, water temperature, or workload.
· Air-balanced flow-through piston in a chrome plated brass body provides constant and effortless airflow unaffected by depth, tank pressure, or breathing rate.
· Patented XTIS (Extended Thermal Insulating System) thermally insulates the inner mechanism from the environment, improving cold-water resistance and delaying ice formation in extreme cold-water conditions without compromising breathing performance.
· Anti-freeze protection radically increases breathing reliability when diving in the most extreme water temperatures.
· Two opposing high pressure ports allow the first stage to be positioned either up or down.
· Four high-flow and one axial super high-flow low pressure ports on a swivel turret maximize hose routing options.
· External intermediate pressure adjustment enables technicians to fine-tune performance quickly and easily.
· Air-balanced second stage valve smooths out the inhalation effort at varying depths and supply pressures.
· Second stage’s rugged reinforced technopolymer case and front cover with stainless steel frame looks good plus is extremely durable.
· Metal valve housing (barrel) is able to withstand years of aggressive diving.
· User controls include a diver-adjustable inhalation effort knob and Venturi-Initiated Vacuum Assist (VIVA) dive/pre-dive switch.
2nd Stage Design Balanced
2nd Stage Series S Series
Water Temperature Cold, Temperate, Warm
Connector Type DIN
HP Ports 5
1st Stage Materials Chrome-Plated Brass
2nd Stage Materials Stainless Steel Cover Frame
Product Weight 2 lb
Adjustable 2nd Stage Yes
2nd Stage Valve Housing Material Technopolymer